SystemInfo Channel

Registers in SystemInfo channel:

RegNo	Identifier	Memory type	Read Out	Type
0	CPUUsage_Percent		-------	Real
1	MemoryStatus		-------	Record
2	SystemIdleTime_msec		-------	LongInteger
3	DriveInfo			Array
4	ServiceStart		-------	RealDate
5	StreamSave		-------	RealDate
6
7
8
9
10
11
12
13
14	Guid	Stream Read Only	-------	String
15

RegNo 0: CPUUsage_Percent

CPUUsage_Percent:

Real;

This field holds the current load of the CPU in percent.

RegNo 1: MemoryStatus

The record is of the following type:

Record
	MemoryLoad_Percent:	LongInteger;
	TotalMemory_KBytes:	LongInteger;
	AvailableMemory_KBytes:	LongInteger;
	TotalPageFile_KBytes:	LongInteger;
	AvailPageFile_Kbytes:	LongInteger;
	TotalVirtual_Kbytes:	LongInteger;
	AvailVirtual_Kbytes:	LongInteger;
End;

MemoryLoad_Percent:

Approximate percentage of total physical memory that is in use. Windows NT: Percentage of approximately the last 1000 pages of physical memory that is in use.

TotalMemory_KBytes

Total size of physical memory, in Kbytes.

AvailableMemory_KBytes

Size of physical memory available, in Kbytes.

TotalPageFile_KBytes

Size of the committed memory limit, in Kbytes.

AvailPageFile_KBytes

Size of available memory to commit, in Kbytes.

TotalVirtual_KBytes

Total size of the user mode portion of the virtual address space of the calling process, in Kbytes.

AvailVirtual_KBytes

Size of unreserved and uncommitted memory in the user mode portion of the virtual address space of the calling process, in Kbytes.

RegNo 2: SystemIdleTime_msec

SystemIdleTime_msec:

Word;

This register holds the time in milliseconds since the last input event occurred.

RegNo 3: DriveInfo

This variable is an array having the following structure:

Record
	DriveLetter:	String[3];
	FreeSpace:	Real;
	Prefix:	String[2];
End;

TDriveInfoList = Array[0..9] of TDriveInfo;

DriveLetter

This field holds the drive letter for the drive, e.g. “C:\”

FreeSpace

This field holds the amount of free disk space available to the user.

Prefix

This field holds the prefix of the FreeSpace variable.

GB -> GigaBytes,

MB -> MegaBytes

KB -> KiloBytes

RegNo 4: ServiceStart

ServiceStart:

RealDate;

The register shows when the P-NET Gateway service was started.

RegNo5: StreamSave

StreamSave:

RealDate;

The register shows when data was last written to the stream file. This file holds all information about the P-NET Gateway service configuration and data to all it’s nodes.

RegNo 14: GUID

GUID:

String[22];

Each channel type is identified by means of a unique GUID. The value of GUID for the channel is: PD/551309-01.